High Altitude Challenge

High Altitude Challenge

Experience the ultimate runner’s high in Boulder, CO. A dream destination for the endurance athlete, these two IRONMAN races will sure be a life-changing experience.

Back by popular demand, the High Altitude Challenge medal will be waiting for you when you cross that finish line in Boulder at the IRONMAN 70.3 Boulder August 3rd. Challenge yourself at the 2019 IRONMAN Boulder in June and return for the challenge in August at the 70.3 IRONMAN Boulder.

Boulder, Colorado is the perfect spot for a race-cation with thriving outdoor scene and abundant opportunities for adventure so why not come back twice to experience the epic summertime fun in Boulder! Check out our accommodations page for all the places to stay both race weekends. The mountains await you and so does this customized bling.